Drilling rig



Nov. s, 1938.

JE. RENFER DRILLING RIG Filed Aug. 26, 1935 2 Sheets-Sheet 1l Nov. 8,1938. J. E. RNFER 2,135,769

' DRILLING RIG Filed Aug. 26,'1935 2 shams-sheet 2 Patented Nov. 8, 1938UNITED STATES i DRILLING RIG John E. Renter., Cleveland, Ohio, assignorto The Cleveland Rock Drill CompanyJ `(llevelandghioe,

' a 'corporation of --Ohio l ,Application August-.26, 193:5, Serial No.:371,821

mclaims. (ol. 25e-$1) This invention pertains lbroadly :td drillinga-pparatus, but more particularly to supporting rigs for fluid actuatedvdrills commonly known as wagon drills.

A One object of this invention is to produce an improved drillingapparatus of the wagon drill type.

Another object of this invention is to provide a wagon drill with amechanism lwhereby the 1.o: drill maybe positioned for drilling holes indi-fferent positions relative to the framev supporting the drill, landmay be adjusted vertically 'and longitudinally of the latter.

Another Iobject of this invention is to produce 15. a wagon drill ofvsimple construction.,'constituting an assembly which is strong,dura-ble and eflicient.

Other objects and advantages more -or less ancillary to the foregoingreside in the.v specific construction and aggroupment of the elementspeculiar to this structure, as become apparent from .a more ycompleteexaminationl of this specification.

Referring to the vdrawings which illustrate -a preferred embodiment ofthe invention:

Fig. 1 is a top plan view of the frontend portion of a drillingapparatus having the invention applied thereto.

Fig, 2 is a longitudinal sectional view of :the complete apparatus takenin a plane indicated by line 2-2 in Fig. 1.

Fig. 3 is a view similar to Fig. 2, illustrating the front end portionof the apparatus with thedrilling motor shown inv a different position.

Fig. 4 is an enlarged ,sectional View .taken in a plane indicated byli-ne A4--4 in Fig. `2.

Fig. 5 is a cross sectional View ltaken in a plane indicated by line 5-5in Fig. 4. l

Fig. 6 is a cross sectional view taken ina plane indicated by lineB-Ivin Fig. 5.

Fig. '7 is a cross sectional view takcnin va plane indicated byv line.'I-'I in Fig. 4.

Fig. 8 isa cross sectional View taken .in a plane indicated by line 8--8in Fig. 6..

Fig. 9 is an enlarged sectional view taken in a plane indicated by line9-9 in Fig. v2.

Fig. 10 is a side elevational View of a drilling apparatus having amodified form of the invention applied thereto.

In this illustrative construction, there is shown a carrying ,frame I5having wheels IB, I1 and I8 rotatably 4secured thereto by which thefra-meis supported. The frame I5 includes two side members I9 and 20having'thei-r rea-r endportion united by a bracket 2| `carrying-thewheel 5.5. I8. The front .end portion of -the Imembers. I9

andf2IJ; are-maintained-iin:spaced relations, and thereby constitute theopen front end of the frame, the purpose vof `which will be Aexplainedhereinafter;y 'I'othe inner wall =of each of the side lmembers I9 .and2.0 there is secured vby bolts 22 :an annular member or track v23,-whichis located close to the ifront end yof the side member and disposedvertically toextend aboveand :below the esame. The peripheral wall 24 ofeach track- 23 is provided with a vrelaitvely narrow 1p ridgel 2-5having :teeth '26 -out thereon. This periphera-l wallf"hasside walls21'and 28 extending inwardly therefrom, thus constituting an Iannu.-lai` track or `guide of substantially -U shaped crosssecti-on having abottom -wall 29.l The bolts 1:5 2.2" extend through the :side wa-ll 28yand the corresponding side 'member of the supporting frame I5 toreceive the nutsA 3.0 vby which the track is rigidly `rsecured to 'theframe.

-lilxtending from -one to the other track 23, 2O there is atubularwcrossmember 3| having each end portion thereof formed with averticalwa-ll 32 ,dependingftherefrom. 'Ihe wall .32 is externallymachined to provide two parallel arcuated surfaces 3,3A and l34,theviormer slidably engagingrl the inner portion of the track peripheralwall 24, while-.the Ilatter is slidably engaging the end of the trackside Ywall 21; On its inner side,r the wall 32 is formed with tworadially disposed bosses 35, `each v.having a -bolt .3.6 extendingtherethrough cooperating with anut 31 .and a clamp-38 for locking lthecross .member 3l lagainst movement relative to thetracks23. As shown inFig. 6, the .clamp 38 is AL shaped and has one end formed with .a .ridge.39 engaging the bottom of the'bos's 35, while the other yend isareuated 35 as at 40 in Fig. 8, .for Aengagement with the arcuatedbottom Wall 29 of the track 23. 'I'he wall of the .ola-mp leading fromthe arcuated end 40 is also in engagement with the side wall 21 of thetrack 2.3 to. prevent the spreading of the 40 side members I9 .an'd2llof the carrying frame I5.

Longitudinally Vdisposed through the tubular cross member 3|, there is ashaft 4I having each end-supported within a bearing '42' formed in a cap43 secured to each end of the cross mem- 45 ber by bolts 44. To each endportion of the shaft 4I is vkeyed a gear or pinion 45 meshing withthefteeth 26 -of 4the corresponding'track 23. Intermediate its ends, thecross member 3I is formed with a -rtransversally disposed `boss 46, 50having an aperture extending therethrough and'ada-pted to rotatablyaccommodate a worm 48. Each end of the aperture -41 is threaded toreceive a Anut 4'9 throughwhich extends the reduced correspondingxend.of the worm, which is shaped as at 50 to accommodate a handle 5| bywhich the worm may be rotated. The worm 48 is in constant operativeengagement with the teeth of a worm gear 52 keyed on the shaft 4|Pivotally secured to the cross member 3| by a clamp 53, there is anelongateddrill guidingframe 54 having a drilling motor 55 slidablethereon. In this illustrative construction, the elongated frame 54 has afeeding mechanism therein operatively associated with the drilling motorfor imparting forward or backward feeding movement thereto.

Pivotally secured to the drill guiding frame 54' by a clamp 56, there isone endof a jack5'|, which has its other end pivotallyconnectedl to thesupporting frame I5. By operating the jack 51, pivotal movement isimparted to the drill guiding frame, which may thereby be moved: fromhorizontal to vertical position relative tothe carrying frame |5.

Referring to the modification shown in Fig.'10, it will be seen thatthe'mechanism shown therein is substantially the same as that previouslydescribed.- In the former the tracks or guides Ei8areY of greaterdiameter than ltheV tracks 23 ofv the latter, and are located toextendrconsiderably higher above the frame 59, which correspond to thecarryingframe l5. On the cross member 60, which is a replica of thecross member 3|, is pivotally mounted a clamp 6|, which in turn isadapted to receive the center housing 52 of a` drill guiding frame 63.kThis housing is mounted within the clamp 6| in a manner permitting thepivotal movement of the drill guiding frame on an axis normal to thelongitudinal center axis of Vthe cross member 60. Since the connectionbetween the cross memberl) and drill guiding frame 63 does not form apart of this invention, and that the construction shown in Figli) isonly a modified applicationof the invention, no further description isthought necessary. i

I-n the operation of the mechanism, when the worm 48 is rotated throughthe'crank handle 5|, rotation is imparted'to the worm gear 52, thusimparting rotation to the pinions 45 through the shaft 4|. The pinionsVl5 engaging the teeth 26 of the circular tracks 23, will cause thetubularcross member 3| to travel on the tracks in a circular pathpassing between the two side members I9 and 28. Due to the movement ofthe tubular cross member 3|, it`will be understood that the drillguiding frame, together with the drillv 55 therein, may be elevated orlowered with respect to the carrying frame, and be adjustedlongitudinally of Vthe latter. ,Due to the movement of the cross member3|, and the pivotal connection of the'drill guiding frame therewith, thedrill 55 may be moved in various drilling positions, above or below thecarrying frame, while one end of the drill guiding frame is movablethrough the open end of the carrying frame.

The cross member 3| may be locked against movement relative to thecarrying frame in any position possible Aby virtue of its travel on thearcuated tracks or guides 23, by tightening the nuts 3l cooperating withthe bolts 36, for causing the clamping engagement of the-arcuated endwall 40 of the clamps 38 withA the bottom wall 29 of the tracks 23. `1Although the foregoing description is necessarily of a detailedcharacter in order to completely set forth the invention, it is to beunderstood that the specific terminologyis not intended to berestrictive or confining, and it is to be further understood that themechanism herein described may well be used in connection with othertypes of rock drills or rock drill guiding frames without departing fromthe scope and spirit of the invention as herein claimed.

I claim:

1. In a portable drilling rig, the combination with a substantiallyhorizontal wheel supported carrying frame, stationary tracks carried bysaid frame in perpendicular relation therewith, a member carried by saidtracks independently of said carrying frame for guided movement on saidtracks, a drill detachably secured to said memc ber, said tracksextending longitudinally of said carrying frame and from above to belowthe latter to enable the adjustment of the drill into various drillingpositions longitudinally of said frame. above or below the latter due tothe movement of said member on said tracks, and means forestablishin'g arigid connection between said member and frame in any drilling positionassumed by `said drill by virtue "of the movement of said member on saidtracks.

2. I-n a portable drilling rig, the combination of a carrying framehaving an open end, supporting wheels carried by said frame, stationaryguiding means carried by said frame extending above vand below the`latter and having traction means formed thereon, an element carried bysaid guiding 'means capable of guided movement thereon through the openend of said frame, a drill detachably secured to said element, amechanism including rotatable means carried byr said element operativelyengaging said traction means and having rotation imparted thereto forcausing the movement of said element and the consequential movement ofsaid drill in various'drilling positions relative to said frame, andmeans for locking said element and drill against movement relative tosaid frame.

v 3. vIn a portable drilling rig, the combination of a carrying frame, aduality of racks carried by said frame, an element carried by said racksfor movement relatively thereto, a drill detachably secured tosaid'element, gears carried by said element and meshing with said racks,a mechanism operable for imparting rotation to said gears to cause themovement of said element, said racks formed and disposed in a mannerwhereby said element upon rotation of said gears is capable of`adjustment from above to belowsaidframe and longitudinally of thelatter, Vand means forA establishing a rigid connection between saidelement and frame in any drilling position assumed by said drill byvirtue ofthe adjustment of said element.

I 4. In a portable drilling rig, the combination of a carrying frameincluding two side members, a circular member secured to each of saidside members and extending above and below the same, an element entirelycarried by said circular members, connecting means between said circularmembers and element affording the latter to rotate around the former, adrill carried by said element, and means for establishing a rigidconnection between said element and frame in any drilling positionassumed by said drill by virtue of the rotation of said element aroundsaid circular members.

5. In a portable drilling rig, the combination of a carrying frame, aduality of spaced circular stationary members mounted on said frame incoaxial alignmentwith each other, an element entirely carried by saidmembers, connecting means between said members and element aording themovementl of the latter around the former, a drilling mechanism carriedby said element, one end of said mechanism being movable through thespace between said members, and means for locking said element and frameagainst relative movement.

6. In a portable drilling rig, the combination of a carrying frameincluding two side members, a stationary gear carried by each of saidside members in coaxial alignment with each other, an element extendingfrom one to the other of said gears, pinions carried by said elementmeshing with said gear, a mechanism operable for imparting rotation tosaid pinions for moving of said element in .a circular path, a drillcarried by said element, and means for establishing a rigid connectionbetween said element and frame in any drilling position assumed by saiddrill by virtue of the movement of said element.

7. In a portable drilling rig, the combination of a substantiallyhorizontal wheel supported carrying frame, areuated racks on said frame,a drill guiding frame, a connecting mechanism between said framesentirely carried by said racks and including gears meshing with saidracks for adjustably moving said drill guiding frame relative to saidcarrying frame, and means for locking said frames against relativemovement.

8. In a portable drilling rig, the combination of a substantiallyhorizontal carrying frame, arcuated supporting wheels for said frame,track stationary on said frame, a drill guiding frame, a connectingmechanism between said frames entirely carried by said tracks andincluding operable means co-operating with traction means formed on saidtracks for adjustably moving said drill guiding frame relative to saidcarrying frame, and means for locking said frames against relativemovement.

9. In a portable drilling rig, the combination of a substantiallyhorizontal carrying frame, supporting wheels for said frame, stationaryarcuated guiding means on said frame having traction means formedthereon, an element carried by said guiding means for guided movementthereon, a drill guiding frame detachably secured to said element, amechanism including means co-operating with said traction means foreffecting the movement of said drill guiding frame in variousoperativepositionsrelativeto said carrying frame', and means for lockingsaid frames against relative movement.

10. In a portable drilling rig, the combination of a carrying frame,supporting wheels for said frame guiding means on said frame havingtraction means formed thereon, an element carried by said guiding meansfor guided movement thereon, a drill detachably secured to said element,means carried bysaid element cooperatingwith said traction means foreiecting the movement of said element, said guiding means extendinglongitudinally of said frame from above to below the latter wherebysaidelement due to the movement thereof on said guiding means isadjustable longitudinally of said frame and from above tobelow thelatter, and means for establishing a rigid connection between saidelement and frame in anydrilling position assumed by said drill byvirtue of the adjustment of said element.

JOHN E. RENFER.

